DEVICE FOR CATCHING POWDERED ADDED AGENT FOR PRESSURE PLASTICATOR OF CLOSED TYPE AND METHOD OF CATCHING OF POWDERED ADDED AGENT Russian patent published in 2015 - IPC B01F7/04 B01D46/52 B01F3/18 B01F15/00 

FIELD: machine building.

SUBSTANCE: invention relates to the catching device that catches powdered added agent, extruded from the pressure plasticator of closed type for plastication of the plasticised material with high viscosity, such as resin, plastic and ceramics, and to the method of catching of the powdered added agent using the catching device. The catching device for catching of the extruded powdered added agent is installed on the pressure plasticator of closed type for plastication of the plasticised material together with the powdered added agent in the plastication tank by means of rotation of the plastication rotor. In the catching device the cylindrical air bag, made with possibility of expansion and compression, is connected to the side surface of the enclosing wall of the plastication tank using the ventilation hose between the air bag and enclosing wall, art that the enclosing wall envelopes the perimeter of channel for the pressure lid lifting/lowering. The removal channel, made with possibility of connection and disconnection from the environment, is connected to top part of the air bag, and filtering tube to filter and to catch the powdered added agent transferred by gaseous phase, supplied from the side of the plastication tank, it is located in suspended state inside the air bag. So, there is possibility to return the powdered added agent, caught by the filter pipe, back to the plastication tank by means of flow of the compressed air accumulated in the air bag.

EFFECT: improved work medium by prevention of the discharge of large quantity of the powdered added agent in form of dust, and return of the powdered added agent back to the plastication tank.

8 cl, 8 dwg